High-resolution 352 nm range fluorescence spectra for carbon-14 formaldehyde

Carbon-14 isotope separation technologies are important in various fields especially in the nuclear industry for radioactive waste treatment. Nowadays, laser isotope separation of carbon-14 based on photo-dissociation of formaldehyde molecule has become feasible. To develop this technology, spectral...

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Bibliographic Details
Published in:Journal of the Korean Physical Society 2024, 85(1), , pp.21-27
Main Authors: Kim, Yonghee, Cha, Yongho, Lee, Lim, Kim, Taek-Soo, Ko, Kwang-Hoon
Format: Article
Language:English
Subjects:
Mathematical and Computational Physics
Molecules and Optics
Original Paper - Atoms
Particle and Nuclear Physics
Physics
Physics and Astronomy
Theoretical
물리학
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Summary:Carbon-14 isotope separation technologies are important in various fields especially in the nuclear industry for radioactive waste treatment. Nowadays, laser isotope separation of carbon-14 based on photo-dissociation of formaldehyde molecule has become feasible. To develop this technology, spectral information of formaldehyde isotopologues is essential. We constructed a fluorescence spectroscopic setup including a tunable ultraviolet laser system to measure the carbon-14 formaldehyde spectrum. We also developed an evaporation process, involving self-enrichment of formaldehyde to obtain fluorescence signals using limited concentrations and amounts of samples. We demonstrate that the formaldehyde fluorescence spectra are in the 28,371–28,432 cm −1 wavelength region, and identify the individual 14 CH 2 O peaks and estimate their absorption cross-sections.
ISSN:0374-4884
1976-8524
DOI:10.1007/s40042-024-01092-w